Contributions to the fossil flora of the western territories ... By Leo Lesquereux.Lesquereux, Leo,1806-1889textbookWashington,Govt. Print. Off.,1874-1883.18741883EnglishCretaceousPaleobotanyPlants, FossilTertiaryWest (U.S.)QE924 .L4Report of the United States Geological Survey of the Territories ; v. 6-8.http://www.biodiversitylibrary.org/bibliography/77263208678gs 08000143 //r85U.S. Geol. Survey Library